110 BIOLOGICAL SOCIETY OF WASHINGTON. 



1205a. Taxodium distichum, Richard. 



Marshall Hall, Md.. Sept. 13, 1885. Collected by Mr. Wm. 

 Palmer and Mr. O. N. Bryan. Mr. Bryan regards these trees 

 as undoubtedly indigenous. 



1225a. Asplenium montanum, Willd. 



A short distance above Great Falls, Virginia side, Aug. 30, 1885. 

 Mr. Wm. Palmer. 



1233a. Aspidium spinulosum, Swz. Spinulose Wood Fern. 



In a ravine (Goldianum Run) on the Virginia side of the Poto- 

 mac, opposite the Distributing Reservoir, July 6, 1884, by 

 Prof. Ward. 



1248a. Lycopodium inundatum, L. 



Near the Sarracenia swamp; first detected May 10, 1885. 

 Fruiting specimens collected Sept. 10, 1885. Also found 

 near Woodlawn, Fairfax Co., Va., Oct. 1885, by Wm. 

 Hunter. 



1248a. Lycopodium annotinum, L. 



Specimen in herb. Mr. Wm. Palmer, said to have been col- 

 lected by Dr. E. Foreman in Holmead Swamp. Station 

 long since obliterated. 



1249a. Lycopodium clavatum, L. 



Above Great Falls, Virginia side, Aug. 30, 1885, by Mr. Wm. 

 Palmer. Also Silver Spring, Md., Jan. 2, 1886. 



1382a. Nitella megacarpa, Allen. 



Eastern Branch, above Benning's Bridge, Sept. 21, 1884. In 

 fine fruiting condition. Identified by Dr. T. F. Allen, 

 of New York. 



II. A REVISION OF THE MUSCI AND HEPATIC^E OF WASH- 

 INGTON AND VICINITY, WITH NUMEROUS ADDITIONS. 



By Rev. E. Lehnert. 



[It is with great pleasure that I am able to include in this communication the much-needed 

 revision of our Mosses and Liverworts, which has been so kindly placed at my disposal 

 by Mr. Lehnert. The list given in the "Flora,'' which was prepared by Mr. Rudolph Old- 

 berg, enumerates 127 species. We are now able to augment that list by the addition of 111 

 species, of which 83 are Frondosi and 28 Hepaticae, making a total of 238 species. 



The nomenclature followed is, for the Frondosi, " The Mosses of North America," by Les- 

 quereux and .Tames, and for the Hepaticse, the "Descriptive Catalog of Hepaticte," by Under- 

 wood.] 



